Effects of external patch configuration on repaired composite laminates subjected to multi-impacts
Autor(a) principal: | |
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Data de Publicação: | 2017 |
Outros Autores: | , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
Texto Completo: | http://hdl.handle.net/10316/36795 https://doi.org/10.1016/j.compstruct.2017.02.069 |
Resumo: | This work intends to study the impact performance of repaired composites by the overlap patch technique and, for this purpose, experimental tests were carried out on single and double-patch specimens. In order to evaluate the impact fatigue strength, both configurations were submitted to multi-impacts, until the full perforation occurs. It was possible to conclude that the double-patch geometry supports higher maximum loads, lower displacements and promotes higher elastic energies. Relatively to the impact energy of 6 J, for example, the maximum load and the elastic energy is 97.1% and 51.2% higher, respectively, but the maximum displacement is about 50% lower than the values obtained with the single-patch geometry. Higher impact fatigue life was also observed, as consequence of its higher stiffness. The impact bending stiffness confirms the difference of stiffness between them, and shows to be a parameter able to monitor the damage progression. |
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7160 |
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Effects of external patch configuration on repaired composite laminates subjected to multi-impactsComposite structureBonded composite repairExternal patch repairImpact testsThis work intends to study the impact performance of repaired composites by the overlap patch technique and, for this purpose, experimental tests were carried out on single and double-patch specimens. In order to evaluate the impact fatigue strength, both configurations were submitted to multi-impacts, until the full perforation occurs. It was possible to conclude that the double-patch geometry supports higher maximum loads, lower displacements and promotes higher elastic energies. Relatively to the impact energy of 6 J, for example, the maximum load and the elastic energy is 97.1% and 51.2% higher, respectively, but the maximum displacement is about 50% lower than the values obtained with the single-patch geometry. Higher impact fatigue life was also observed, as consequence of its higher stiffness. The impact bending stiffness confirms the difference of stiffness between them, and shows to be a parameter able to monitor the damage progression.Elsevier2017info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlehttp://hdl.handle.net/10316/36795http://hdl.handle.net/10316/36795https://doi.org/10.1016/j.compstruct.2017.02.069https://doi.org/10.1016/j.compstruct.2017.02.069eng0263-8223http://www.sciencedirect.com/science/journal/02638223Coelho, S. R. M.Reis, P. N. B.Ferreira, J. A. M.Pereira, A. M.info:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2021-08-27T09:16:35Zoai:estudogeral.uc.pt:10316/36795Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T20:57:55.749385Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse |
dc.title.none.fl_str_mv |
Effects of external patch configuration on repaired composite laminates subjected to multi-impacts |
title |
Effects of external patch configuration on repaired composite laminates subjected to multi-impacts |
spellingShingle |
Effects of external patch configuration on repaired composite laminates subjected to multi-impacts Coelho, S. R. M. Composite structure Bonded composite repair External patch repair Impact tests |
title_short |
Effects of external patch configuration on repaired composite laminates subjected to multi-impacts |
title_full |
Effects of external patch configuration on repaired composite laminates subjected to multi-impacts |
title_fullStr |
Effects of external patch configuration on repaired composite laminates subjected to multi-impacts |
title_full_unstemmed |
Effects of external patch configuration on repaired composite laminates subjected to multi-impacts |
title_sort |
Effects of external patch configuration on repaired composite laminates subjected to multi-impacts |
author |
Coelho, S. R. M. |
author_facet |
Coelho, S. R. M. Reis, P. N. B. Ferreira, J. A. M. Pereira, A. M. |
author_role |
author |
author2 |
Reis, P. N. B. Ferreira, J. A. M. Pereira, A. M. |
author2_role |
author author author |
dc.contributor.author.fl_str_mv |
Coelho, S. R. M. Reis, P. N. B. Ferreira, J. A. M. Pereira, A. M. |
dc.subject.por.fl_str_mv |
Composite structure Bonded composite repair External patch repair Impact tests |
topic |
Composite structure Bonded composite repair External patch repair Impact tests |
description |
This work intends to study the impact performance of repaired composites by the overlap patch technique and, for this purpose, experimental tests were carried out on single and double-patch specimens. In order to evaluate the impact fatigue strength, both configurations were submitted to multi-impacts, until the full perforation occurs. It was possible to conclude that the double-patch geometry supports higher maximum loads, lower displacements and promotes higher elastic energies. Relatively to the impact energy of 6 J, for example, the maximum load and the elastic energy is 97.1% and 51.2% higher, respectively, but the maximum displacement is about 50% lower than the values obtained with the single-patch geometry. Higher impact fatigue life was also observed, as consequence of its higher stiffness. The impact bending stiffness confirms the difference of stiffness between them, and shows to be a parameter able to monitor the damage progression. |
publishDate |
2017 |
dc.date.none.fl_str_mv |
2017 |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://hdl.handle.net/10316/36795 http://hdl.handle.net/10316/36795 https://doi.org/10.1016/j.compstruct.2017.02.069 https://doi.org/10.1016/j.compstruct.2017.02.069 |
url |
http://hdl.handle.net/10316/36795 https://doi.org/10.1016/j.compstruct.2017.02.069 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
0263-8223 http://www.sciencedirect.com/science/journal/02638223 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.publisher.none.fl_str_mv |
Elsevier |
publisher.none.fl_str_mv |
Elsevier |
dc.source.none.fl_str_mv |
reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação instacron:RCAAP |
instname_str |
Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
instacron_str |
RCAAP |
institution |
RCAAP |
reponame_str |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
collection |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
repository.name.fl_str_mv |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
repository.mail.fl_str_mv |
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1799133869349273600 |